Wait, wait: so your take is that the upcoming alien-signals[0] library integration -- created from scratch to improve Vue's signals performance -- is just "using existing technologies instead of creating truly fresh solutions"?
Basically, if I understand correctly, it's not "shiny" enough -- even though it is going to significantly improve signals performance.
Vue 3.6, for example, is incorporating a new signals rebuild that's several times faster and probably the fastest signals implementation out there[0]
Vue Vapor will also release in experimental mode in 3.6 and once it's mainstreamed, will probably also be among the fastest render models.
Both changes do not affect the DX and require no migrations, but will provide faster performance for ever more complex apps.
[0] https://www.youtube.com/watch?v=zvjOT7NHl4Q